题目: 给定一个字符串,找到它的第一个不重复的字符,并返回它的索引。如果不存在,则返回 -1。 Given a string, find the first non-repeating character in it and return it's index. If it doesn't ...
Given a string, find the first non repeating character in it and return it s index. If it doesn t exist, return . Examples: Note: You may assume the string contain only lowercase letters. 这道题确实没有什么难度 ...
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题目: 给定一个字符串,找到它的第一个不重复的字符,并返回它的索引。如果不存在,则返回 -1。 Given a string, find the first non-repeating character in it and return it's index. If it doesn't ...
Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note: You may ...
Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note: You may ...
给定一个字符串,找到它的第一个不重复的字符,并返回它的索引。如果不存在,则返回 -1。 C++ C C比C++麻烦很多啊。。 ...
Consider the string s to be the infinite wraparound string of "abcdefghijklmnopqrstuvwxyz", so s will look like ...
在idea中使用练习 一.先创建一个Test(练习类) 1.1.1创建数组 第二步想把数组转为字符串打印输出不要【】 输出结果 ...
题目: 字符串中的第一个唯一字符:给定一个字符串,找到它的第一个不重复的字符,并返回它的索引。如果不存在,则返回 -1。 案例: 注意事项:您可以假定该字符串只包含小写字母。 思路: 哈希表,较简单。 程序: class Solution: def ...
lunix 如果是在 Linux 中 截取,cut, awk 就很容易搞定 1 ...